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Extraction of Copper

Silver ore is...

Question

Silver ore is related with NaCN (aq) to

A.)reduce metal

B.)extract pure silver

C.)refine silver

D.)to remove the impurities

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Solution

Extraction of SilverRole of NaCN = In the extraction of silver, the metal is leached with NaCN , which is an oxidation reaction .During the process, Ag is oxidised to Ag+ .Here M =Ag.Subsequent reaction with Zn leads to formation of free metal. So option B is the answer

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